| Customization: | Available |
|---|---|
| Item: | Portable Plant Chlorophyll Meter Spad-502plus |
| Test Elements: | Chlorophyll, Nitrogen |
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Product description:
Chlorophyll Meter can measure chlorophyll content of plants. Chlorophyll content and leaf nitrogen content have a very close relationship. Thus, chlorophyll content can reflect plants demand for nitro. Using the instrument can do go to put nitrogen fertilizer reasonably, improve utilization of nitrogen and protect environment.
| Measuring area | 10mm |
| Measuring mode | 2-wavelength concentration difference of optical methods |
| Sensors | Silicon semiconductor photodiode |
| Display mode | measuring value: 3 digits liquid crystal display Measuring times: 2 digits liquid crystal display |
| Min measuring interval | < 2s |
| Measuring Range | 0.0-99.9 SPAD |
| Accuracy | ±1.0 SPAD |
| Repeatability | ±0.3SPAD |
| Operating temperature | 0-50°C |
| Storage temperature | -20-55°C |
| Power | 2 AA batteries |
| Dimensions (L × W × H) | 155mm * 70mm * 42mm |
| Battery life | can maintain more than 20000 operations |
| Memory capacity | 30datum, automatically calculate and show the average. On: to open the power and OFF: to close the power |
| AVG button | Calculate the average of data |
| Del (to move all data) button | Clear all the data |
| DISP button | Display stored datum |
| MEAS button | Press MEAS key to test |
| Weight | 320 grams (excluding batteries) |
| Channel | 16 |
| Wavelength | 410nm |
| Inhibition rate display range | 0 ~ 100% |
| Inhibition rate measurement range | 0 ~ 100% |
| Transmittance accuracy | ≤ ± 1.5% |
| Transmittance repeatability | ≤ 0.5% |
| Photocurrent drift | ≤ 0.5% (3 minutes) |
| Detection limit of pesticide | 0.1~5mg/kg |
| Inhibition rate repeatability | ≤ 5% |
| Detection time setting | 0 ~ 9min arbitrary setting |
| Working environment | Temperature : RT-20ºC;Humidity≤85% |
| Earthquake resistance | qualified |
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